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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 629 · 40 sums
TalentJR

The trick (Urdhva Tiryagbhyam): Top: multiply crosswise — first top × second bottom, then first bottom × second top — and add (or subtract). Bottom: multiply the two bottoms. Simplify by dividing top and bottom by their HCF. Give the answer as a fraction like 17/12.

NameDateTime takenScore ___ / 40
  1. 1.4/10 + 5/6 =
  2. 2.4/10 + 2/12 =
  3. 3.2/8 + 1/5 =
  4. 4.4/7 + 8/9 =
  5. 5.1/7 + 4/10 =
  6. 6.1/3 + 4/9 =
  7. 7.6/8 − 6/10 =
  8. 8.1/2 + 1/10 =
  9. 9.2/3 + 1/7 =
  10. 10.1/8 + 6/10 =
  11. 11.5/8 − 1/5 =
  12. 12.2/5 + 6/8 =
  13. 13.4/6 − 3/10 =
  14. 14.2/8 + 3/5 =
  15. 15.7/11 − 1/3 =
  16. 16.5/6 + 3/4 =
  17. 17.1/3 + 1/3 =
  18. 18.10/11 + 1/2 =
  19. 19.3/8 − 1/3 =
  20. 20.1/11 + 3/8 =
  21. 21.9/10 + 4/6 =
  22. 22.1/2 + 5/11 =
  23. 23.1/6 + 1/6 =
  24. 24.5/9 − 2/7 =
  25. 25.3/6 + 4/8 =
  26. 26.1/2 − 2/5 =
  27. 27.3/4 − 3/12 =
  28. 28.7/8 − 1/2 =
  29. 29.6/9 − 1/8 =
  30. 30.8/10 + 5/9 =
  31. 31.6/9 − 3/8 =
  32. 32.2/3 + 6/9 =
  33. 33.2/3 + 1/2 =
  34. 34.7/10 + 8/9 =
  35. 35.2/3 + 1/6 =
  36. 36.1/5 + 2/5 =
  37. 37.2/3 + 1/2 =
  38. 38.6/7 + 4/7 =
  39. 39.3/4 − 1/3 =
  40. 40.4/5 − 1/2 =

Answer key

  1. 37/30
  2. 17/30
  3. 9/20
  4. 92/63
  5. 19/35
  6. 7/9
  7. 3/20
  8. 3/5
  9. 17/21
  10. 29/40
  11. 17/40
  12. 23/20
  13. 11/30
  14. 17/20
  15. 10/33
  16. 19/12
  17. 2/3
  18. 31/22
  19. 1/24
  20. 41/88
  21. 47/30
  22. 21/22
  23. 1/3
  24. 17/63
  25. 1
  26. 1/10
  27. 1/2
  28. 3/8
  29. 13/24
  30. 61/45
  31. 7/24
  32. 4/3
  33. 7/6
  34. 143/90
  35. 5/6
  36. 3/5
  37. 7/6
  38. 10/7
  39. 5/12
  40. 3/10

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